Antineutron-proton total cross section from 50 to 400 MeV/c

The antineutron-proton total cross section has been measured in the low momentum range 50-400 MeV/c (below 100 MeV/c for the first time). The measurement was performed at LEAR (CERN) by the OBELIX experiment, thanks to its unique antineutron beam facility. A thick target transmission technique has b...

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Detalles Bibliográficos
Autores principales: Iazzi, F, Feliciello, A, Agnello, M, Astrua, M, Botta, E, Bressani, Tullio, Calvo, D, Costa, S, D'Isep, F, Filippi, A, Marcello, S, Minetti, B, Mirfakhraee, N, Balestra, F, Bussa, M P, Busso, L, Cerello, P G, Denisov, O Yu, Ferrero, L, Garfagnini, R, Maggiora, A, Panzarasa, A, Panzieri, D, Tosello, F, Bertin, A, Bruschi, M, Capponi, M, De Castro, S, Donà, R, Galli, D, Giacobbe, B, Marconi, U, Massa, I, Piccinini, M, Poli, M, Semprini-Cesari, N, Spighi, R, Vagnoni, V M, Vecchi, S, Villa, M, Vitale, A, Zoccoli, A, Bianconi, A, Bonomi, G, Lodi-Rizzini, E, Venturelli, L, Zenoni, A, Cicalò, C, Masoni, A, Mauro, S, Puddu, G, Serci, S, Usai, G L, Gorchakov, O E, Prakhov, S N, Rozhdestvensky, A M, Tretyak, V I, Gianotti, P, Guaraldo, C, Lanaro, A, Lucherini, V, Petrascu, C, Lombardi, M, Ricci, R A, Vannucci, Luigi, Bendiscioli, G, Fontana, A, Montagna, P, Rotondi, A, Salvini, P, Tessaro, S
Lenguaje:eng
Publicado: 2000
Materias:
Particle Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1016/S0370-2693(00)00086-1
http://cds.cern.ch/record/439705
Descripción
Sumario:The antineutron-proton total cross section has been measured in the low momentum range 50-400 MeV/c (below 100 MeV/c for the first time). The measurement was performed at LEAR (CERN) by the OBELIX experiment, thanks to its unique antineutron beam facility. A thick target transmission technique has been used. The measured total cross section shows an anomalous behaviour below 100 MeV/c. A dominance of the isospin I=0 channel over the I=1 one at low energy is clearly deduced. (28 refs).

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